#include <bits/stdc++.h>
#define int long long
#define IOS ios::sync_with_stdio(false),cin.tie(0),cout.tie(0);
#define endl "\n"
#define INF 1e18
#define PII pair<int,int>
#define fi first
#define se second
#define pb push_back
using namespace std;

signed main(){
    freopen("arena.in","r",stdin);
    freopen("arena.out","w",stdout);


    return 0;
}
